.sign-header {
    width: 100%;
    >.sign-header-center {
        position: relative;
        width: 990px;
        height: 120px;
        margin: 0 auto;
        >img {
            display: block;
            position: relative;
            top: 35px;
        }
        >span {
            >a {
                font-size: 12px;
                text-decoration: none;
                color: #888;
            }
        }
        >span:nth-child(2) {
            position: absolute;
            top: 5px;
            right: 0;
            >a {
                &:hover {
                    color: blue;
                }
            }
        }
        >span:nth-child(3) {
            position: absolute;
            bottom: 5px;
            right: 0;
            >a {
                &:hover {
                    color: red;
                    text-decoration: underline red;
                }
            }
        }
    }
}